What happens when electrons change levels?

Answer 1

Energy is either absorbed or released. If the electron goes from a high energy orbital to a lower energy one, a photon is emitted. When a photon is absorbed, the electron goes from low energy to high.

Answer 2

First, in order for an electron in an atom to change energy levels, there must be a place for it in the new energy levels. Quantum Mechanics puts very strict rules on how many electrons can be in the same energy level. Assuming there is a place for it, then it is very likely to move into a lower energy level. It is not possible for it to move into a higher energy level unless something from the outside comes in and knocks it up. There is no way to predict when an electron will drop down into a lower energy level. When something like a photon comes in from the outside and knocks the electron into a higher level, it usually drops back down pretty quickly, but not necessarily.

Answer 3

From the theory of Quantum Mechanics an electron has a probability of being anywhere at any energy (this is why people talk about an "electron cloud" surrounding the nucleous). However, when a measurement is made the electron is always found to be in one energy level or the other. For example, if you measure the light emitted, it always comes from an electron changing from level 2 to level 1 (or other allowed energy levels) but never from, say level 1.5 to level 1. It is believed that the act of measurement forces the electron into one of the energy levels.

Answer 4

When an electron changes it's energy level it reaches it's exciting state by the absorption of energy and when it comes back to it's original energy level or ground state it release energy.

EXAMPLE :

when light fall on a metal surface electron of the metal absorb light and go to higher energy level exciting state and reaches at exciting state and when it fall to it's original energy level it release energy ans seems to be shined.

Answer 5

No, electron energy levels are discrete energy levels quantized according to (l(l+1)(h-bar)2)/2I=K

Answer 6

In the first max of 2 electrons and the second max of 8 electrons.

Answer 7

never, those are forbidden energy states.